perf hists browser: Add suppport for event group view

Show group members' overhead also when showing the leader's if event
group is enabled.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-12-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 852e4e1..d7112df 100644 (file)
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -602,6 +602,63 @@ static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he,
        ret += scnprintf(hpp->buf, hpp->size, "%6.2f%%", percent);
        slsmg_printf("%s", hpp->buf);
 
+       if (symbol_conf.event_group) {
+               int prev_idx, idx_delta;
+               struct perf_evsel *evsel = hists_to_evsel(hists);
+               struct hist_entry *pair;
+               int nr_members = evsel->nr_members;
+
+               if (nr_members <= 1)
+                       goto out;
+
+               prev_idx = perf_evsel__group_idx(evsel);
+
+               list_for_each_entry(pair, &he->pairs.head, pairs.node) {
+                       u64 period = get_field(pair);
+                       u64 total = pair->hists->stats.total_period;
+
+                       if (!total)
+                               continue;
+
+                       evsel = hists_to_evsel(pair->hists);
+                       idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
+
+                       while (idx_delta--) {
+                               /*
+                                * zero-fill group members in the middle which
+                                * have no sample
+                                */
+                               ui_browser__set_percent_color(arg->b, 0.0,
+                                                       arg->current_entry);
+                               ret += scnprintf(hpp->buf, hpp->size,
+                                                " %6.2f%%", 0.0);
+                               slsmg_printf("%s", hpp->buf);
+                       }
+
+                       percent = 100.0 * period / total;
+                       ui_browser__set_percent_color(arg->b, percent,
+                                                     arg->current_entry);
+                       ret += scnprintf(hpp->buf, hpp->size,
+                                        " %6.2f%%", percent);
+                       slsmg_printf("%s", hpp->buf);
+
+                       prev_idx = perf_evsel__group_idx(evsel);
+               }
+
+               idx_delta = nr_members - prev_idx - 1;
+
+               while (idx_delta--) {
+                       /*
+                        * zero-fill group members at last which have no sample
+                        */
+                       ui_browser__set_percent_color(arg->b, 0.0,
+                                                     arg->current_entry);
+                       ret += scnprintf(hpp->buf, hpp->size,
+                                        " %6.2f%%", 0.0);
+                       slsmg_printf("%s", hpp->buf);
+               }
+       }
+out:
        if (!arg->current_entry || !arg->b->navkeypressed)
                ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);